What is a common defect related to eave openings in attic ventilation?

Eave openings being blocked, typically by insulation or poorly installed baffles, is a common defect in attic ventilation. Proper attic ventilation relies on unobstructed airflow to maintain a balanced exchange of air between the attic and the outside environment. When eave openings are blocked, it can lead to several issues, such as increased attic temperatures, accumulation of moisture, and potentially harmful conditions like mold growth.

Insulation can easily be misplaced or improperly installed, which inadvertently covers eave openings and impedes airflow. Additionally, baffles are meant to keep insulation clear of these openings to ensure proper ventilation, but if they are not installed correctly, they can also create blockages. This defect significantly undermines the efficiency of the ventilation system and is critical to maintaining the integrity of the attic space.